Join Date: Jan 2009
Location: Lake Michigan - East Side
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[Hate to start a new thread, but can't seem to get below 35 PAGES of search results...a downfall of such a great forum.]
I want to put stainless steel eye strap on my boom (aluminum). Also want to put a cheek block on the aluminum mast. These will be hardware for a lazy jack system.
I'd rather use rivets than screws, but not sure if I should use stainless or aluminum rivets. I'd guess that stainless are stronger.
As to the title of this post, I'll be introducing dissimilar metals -- stainless and aluminum. So I know I need to use something like Tuf-Gel to help guard against galvanization. Correct so far?
My main question is, should I use aluminum rivets and put the Tuf-Gel between the base of the eye straps and spars, or use the stainless rivets and squeeze Tuf-Gel into the drilled holes (as well as between the eye strap base and spar).
Should I use Butyl tape between the stainless eye strap base and the spar? If I lay the tape over the drilled holes (hole to hole) that rivets will enter, I can then place the eye strap on the tape (which will separate the two dissimilar metals) and when I put the rivet in, won't it take a bit of the butyl tape into the drilled hole and thus protect the rivet from making contact with the aluminum spar?